[Ozpara]

I have 2 curtis 1239e controllers running a HPEVS twin 35. The motor has a clicking sound like its hunting after it has been reved and comes to rest. I also get a bunny hop type issue when accelerating. And finality the motor surges slightly while driving.
But put the car in neutral and rev the motor with no load and its smoove.
Anyone got any ideas on whats going on here any help would be much appreciated.